Dihydroxyacetone phosphate

Dihydroxyacetone phosphate
Names

IUPAC name 3-Hydroxy-2-oxopropyl phosphate
Other names Dihydroxyacetone phosphate DHAP
Identifiers
CAS Number	57-04-5^N
3D model (JSmol)	Interactive image
ChEBI	CHEBI:57642^N
ChemSpider	648^N
ECHA InfoCard	100.000.280
PubChem CID	668
InChI InChI=1S/C3H7O6P/c4-1-3(5)2-9-10(6,7)8/h4H,1-2H2,(H2,6,7,8)^N Key: GNGACRATGGDKBX-UHFFFAOYSA-N^N InChI=1/C3H7O6P/c4-1-3(5)2-9-10(6,7)8/h4H,1-2H2,(H2,6,7,8) Key: GNGACRATGGDKBX-UHFFFAOYAZ
SMILES C(C(=O)COP(=O)(O)O)O
Properties
Chemical formula	C₃H₇O₆P
Molar mass	170.06 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is ^YN ?)
Infobox references

Dihydroxyacetone phosphate (DHAP, also glycerone phosphate in older texts) is a biochemical compound involved in many metabolic pathways, including the Calvin cycle in plants and glycolysis.

Role in glycolysis

Dihydroxyacetone phosphate lies in the glycolysis metabolic pathway, and is one of the two products of breakdown of fructose 1,6-bisphosphate, along with glyceraldehyde 3-phosphate. It is rapidly and reversibly isomerised to glyceraldehyde 3-phosphate.

β-D-fructose 1,6-bisphosphate	fructose-bisphosphate aldolase	D-glyceraldehyde 3-phosphate		dihydroxyacetone phosphate
			+

Compound C05378 at KEGG Pathway Database. Enzyme 4.1.2.13 at KEGG Pathway Database. Compound C00111 at KEGG Pathway Database. Compound C00118 at KEGG Pathway Database.

The numbering of the carbon atoms indicates the fate of the carbons according to their position in fructose 6-phosphate.

Dihydroxyacetone phosphate	triose phosphate isomerase	D-glyceraldehyde 3-phosphate

Compound C00111 at KEGG Pathway Database.Enzyme 5.3.1.1 at KEGG Pathway Database.Compound C00118 at KEGG Pathway Database.

Click on genes, proteins and metabolites below to link to respective articles. ^{[§ 1]}

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|{{{bSize}}}px|alt=Glycolysis and Gluconeogenesis edit]]

Glycolysis and Gluconeogenesis edit

↑ The interactive pathway map can be edited at WikiPathways: "GlycolysisGluconeogenesis_WP534".

Role in other pathways

In the Calvin cycle, DHAP is one of the products of the sixfold reduction of 1,3-bisphosphoglycerate by NADPH. It is also used in the synthesis of sedoheptulose 1,7-bisphosphate and fructose 1,6-bisphosphate, both of which are used to reform ribulose 5-phosphate, the 'key' carbohydrate of the Calvin cycle.

DHAP is also the product of the dehydrogenation of L-glycerol-3-phosphate, which is part of the entry of glycerol (sourced from triglycerides) into the glycolytic pathway. Conversely, reduction of glycolysis-derived DHAP to L-glycerol-3-phosphate provides adipose cells with the activated glycerol backbone they require to synthesize new triglycerides. Both reactions are catalyzed by the enzyme glycerol 3-phosphate dehydrogenase with NAD⁺/NADH as cofactor.

DHAP also has a role in the ether-lipid biosynthesis process in the protozoan parasite Leishmania mexicana.

Dihydroxyacetone phosphate

Role in glycolysis

Role in other pathways

See also